Load compensated switching regulator

Abstract

A load compensation circuit for a switching regulator including a comparator circuit and an adjustable voltage source. The switching regulator includes a switch circuit for converting an input voltage to a regulated output voltage and for driving a load current, and a controlled switch driver circuit having a supply voltage input and an output driving the switch circuit. The comparator circuit senses the load current and adjusts a voltage control signal to adjust switching efficiency based on the load current. The voltage source has an input receiving the voltage control signal and an output for providing a switch supply voltage to the supply voltage input of the switch driver circuit, where the voltage source adjusts the switch supply voltage based on the voltage control signal. A method of compensating a switching regulator based on load including sensing load current and adjusting the switch supply voltage to adjust switching efficiency.

Dependencies are inferred from the claim text.